Sleep & Recovery

Irregular Bedtimes May Matter More for Longevity Than Sleep Duration

Most people focus on getting eight hours of sleep, but emerging research suggests that when you go to bed — and how consistently — may matter even more. A large UK Biobank study of over 60,000 adults found that people with regular sleep patterns had a 20–48% lower risk of all-cause mortality compared to the least regular sleepers, and sleep regularity predicted mortality better than sleep duration alone. A 2026 study in midlife adults found that irregular bedtimes were associated with roughly twice the risk of major cardiovascular events over ten years. These are observational findings, so causality isn't proven, but the practical message is clear: maintaining a consistent sleep schedule most days of the week is a simple, low-cost habit worth prioritizing alongside sleep duration and quality.